Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 79, NWS Tulsa, OK

April 19, 2000Okfuskee County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 19, 2000, 11:06 PM CDT for Okfuskee County, Okmulgee County, Oklahoma. It was in force for 54 min. 3 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Apr 19, 2000, 11:06 PM CDT (04:06 UTC)
Expired
Apr 20, 2000, 12:00 AM CDT
In force
54 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Okfuskee County, OK, Okmulgee County, OK

The radar

The Tulsa radar (KINX), 86 km from the middle of the area, began a volume at 04:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 19, 11:24 PM CDTHail 1Mason, OK
Apr 19, 11:40 PM CDTHail 1Lake Okemah, OK
Apr 19, 11:45 PM CDTThunderstorm WindOkmulgee, OKThunderstorm winds destroyed a barn.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 19, 10:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.1 hours before the alert went out and 117 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2000-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 144 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2000-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
144 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
2603 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KTSA 200407
SVRTUL
OKC107-111-200500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1106 PM CDT WED APR 19 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA   
  OKMULGEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL MIDNIGHT CDT

* AT 1106 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES WEST OF OKFUSKEE...MOVING EAST AT 40
  MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BALD HILL...
PRESTON...MORRIS...OKMULGEE...WELTY AND OKFUSKEE

HAIL TO THE SIZE OF GOLFBALLS AND WIND GUSTS TO 65 MPH CAN BE
EXPECTED IN THE WARNED AREA.

A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS.

CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER
SERVICE.

LAT...LON 3561 9646 3547 9647 3554 9583 3578 9578

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 10:22 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee38 min
Apr 19, 10:33 PM CDTSevere Thunderstorm WarningTSACreek, Okfuskee42 min
Apr 19, 11:02 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee, Washington58 min
Apr 19, 11:14 PM CDTSevere Thunderstorm WarningTSACreek46 min
Apr 19, 11:29 PM CDTSevere Thunderstorm WarningTSAOkmulgee, Tulsa, Wagoner61 min
Apr 19, 11:29 PM CDTSevere Thunderstorm WarningTSAMuskogee61 min
Apr 19, 11:37 PM CDTSevere Thunderstorm WarningTSANowata38 min
Apr 19, 11:46 PM CDTTornado WarningTSAMuskogee, Wagoner44 min
Apr 19, 11:59 PM CDTSevere Thunderstorm WarningTSARogers, Tulsa46 min
Apr 19, 11:59 PM CDTSevere Thunderstorm WarningTSACreek46 min
Apr 20, 12:01 AM CDTSevere Thunderstorm WarningTSACraig, Ottawa59 min
Apr 20, 12:17 AM CDTSevere Thunderstorm WarningTSACherokee, Mayes, Muskogee58 min
Apr 20, 12:23 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg52 min
Apr 20, 12:40 AM CDTSevere Thunderstorm WarningTSAHaskell, Muskogee, Sequoyah65 min
Apr 20, 12:44 AM CDTSevere Thunderstorm WarningTSAAdair, Delaware46 min
Apr 20, 1:21 AM CDTSevere Thunderstorm WarningTSAAdair, Sequoyah54 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.